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Unit 7: Ecology 3/21/12

Unit 7: Ecology 3/21/12. EQ: What are the different roles in an ecosystem? Objective: SWBAT define ecosystem roles and recognize them in a case study IA: What is carrying capacity? Define the term. Roles in an Ecosystem. Activity: . Watch each clip Identify the producers and consumers

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Unit 7: Ecology 3/21/12

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  1. Unit 7: Ecology 3/21/12 EQ: What are the different roles in an ecosystem? Objective: SWBAT define ecosystem roles and recognize them in a case study IA: What is carrying capacity? Define the term

  2. Roles in an Ecosystem

  3. Activity: • Watch each clip • Identify the producers and consumers • If you identify a producer, select which type of producer it is.

  4. Homework • Make vocabulary cards for producer, consumer, herbivore, omnivore, decomposer, and carnivore • Bring in or draw a picture of a producer, consumer, herbivore, omnivore, decomposer and carnivore. • The picture must be colorful and cannot be larger than 4 inches if possible. • Write your name on the back of each picture

  5. Activity • Ecosystem Roles Mobile

  6. Unit 7: Ecology 3/26/12 EQ: How has human impact shaped forest ecosystems? Objective: SWBAT read an article about Love Canal and understand the environmental impact human actions can have IA: Quiz Activity: work on RAFT draft/final publication

  7. Unit 7: Ecology 3/26/12 EQ: How have environmental disasters shaped America? Objective: SWBAT illustrate by creating a RAFT an organisms perspective when a forest ecosystem is changed IA:Quiz

  8. One-Pager • Annotate text: circle and share phrases that were meaningful to us • Make a visual representation of our reading • Write two questions that are related to our visual representation • Ask two questions to the author or share two observations about the story

  9. Closing • Share our one pagers, comments and questions to have a class discussion

  10. Unit 7: Ecology 3/27/12 EQ: What relationships do organisms have in the environment? Objective: SWBAT identify symbiotic relationships in case studies IA: What does it mean to cooperate?

  11. Symbiosis • SYMBIOSIS is the interaction between two different organisms living together • HOST- usually the LARGER of the two organisms • SYMBIONT- usually the SMALLER member

  12. THE THREE SYMBIOTIC RELATIONSHIPS ARE... PARASITISM MUTUALISM COMMENSALISM

  13. COMMENSALISM • Is a relationship between the host and symbiont, where the symbiont benefits and the host is neither helped nor harmed. • The symbiont benefits by receiving transportation, housing, and/or nutrition.

  14. Mutualism • Is a relationship between the host and a symbiont, where both organisms benefit and neither is harmed. • The relationship can be long or short term.

  15. PARASITISM • Is a relationship where the Symbiont lives in/on the Host • The Symbiont (or Parasite) BENEFITS • The Host is HARMED

  16. Activity • In each scenario, determine the form of symbiosis. Write the form and describe why.

  17. In this photo the “cleaner fish” receives nourishment by dining off of the parasites and remaining food debris in the eel’s mouth. Is this an example of… PARASITISM MUTUALISM COMMENSALISM

  18. Clownfish are frequently found in the tentacles of sea anemones. Sea anemones capture their prey by paralyzing them with their tentacles. However, the clownfish produces a mucus that prevents the tentacles from harming it. By dwelling amongst the tentacles the clownfish receives a protected home. This relationship is an example of … PARASITISM MUTUALISM COMMENSALISM

  19. The birds in the picture are munching on tiny parasitic insects located on the rhino. The relationship between the birds and the rhino is an example of… PARASITISM MUTUALISM COMMENSALISM

  20. Lampreys are primitive fish with limited digestive systems. They attach to and feed on the body fluids of fish with more advanced digestive systems, often leading to the death of the host fish. This relationship is an example of… PARASITISM MUTUALISM COMMENSALISM

  21. Orchids grow on the branches of high trees. These orchids get more water and sunlight than those on the ground. The tree is unaffected by the orchid’s presence. This relationship is an example of… PARASITISM MUTUALISM COMMENSALISM

  22. Unit 7: Ecology 3/28/12 EQ: What relationships do organisms have in the environment? Objective: SWBAT define predator/prey, graph changing populations and identify trends IA: Quiz!

  23. Predator v. Prey • A predator is an organism that eats another organism. • The prey is the organism which the predator eats.

  24. Activity • Graphing deer and wolf populations

  25. Unit 7: Ecology 3/ /12 EQ: How is an animals habitat different than its niche? Objective: SWBAT differentiate between an organisms habitat and niche IA: Can a predator also be a prey? How?

  26. Habitat vs. Niche • Habitat - The place where an organism lives. A habitat is often thought of as the organism's address. • Examples: A lion’s habitat is a savanna. A monkey’s habitat is a rain forest. A cactus’s habitat is in the desert. • Niche - An organism’s way of life. A niche is considered to be an organism’s occupation. • Examples: A lion’s niche includes where and how it finds shelter and food, when and how often it reproduces, how it relates to other animals, etc.

  27. Create Your Own Creature Name: What does it eat? Is it an omnivore, carnivore, herbivore, decomposer? What are it’s predators? What are it’s prey? Does it cooperate with any other organisms? What form of symbiosis is this? Habitat: Niche: Is this animal threatened? How can we protect it?

  28. Closing • Share out creatures!

  29. Test Review • Pretest • What do I need to study? • Questions

  30. Definitions to Know • Habitat - The place where an organism lives. A habitat is often thought of as the organism's address. Examples: A lion’s habitat is a savanna. A monkey’s habitat is a rain forest. A cactus’s habitat is in the desert. • Niche - An organism’s way of life. A niche is considered to be an organism’s occupation. Examples: A lion’s niche includes where and how it finds shelter and food, when and how often it reproduces, how it relates to other animals, etc. • Ecosystem - All the living organisms in a given area as well as their physical environment -- usually made up of many complex interactions. • Abiotic factors - Non-living parts of an ecosystem. Examples: caves, rain and other water sources, minerals, etc. • Biotic factors - The living parts of an ecosystem. Examples: animals, plants, insects, sponges, fish, etc. • Biome - A geographic area characterized by specific plants and animals. • Predation - An interaction where one species consumes another. • Population - All the species that live in an area and make up a breeding group. • Community - All populations in a given area. • Predator - An organism that feeds off of other organisms. • Prey - An organism that is consumed by another organism. • Competition - An interaction among living things where two populations compete for the same resources and territory. • Parasitism - An interaction among living things where one species benefits from the expense of another. • Mutualism - An interaction among living things where both species benefit from the relationship. • Commensalism - An interaction among two living things where one species benefits from the relationship and the other is not affected.

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